中国环境监测
中國環境鑑測
중국배경감측
ENVIRONMENTAL MONITORING IN CHINA
2014年
1期
60-65
,共6页
大气降尘%来源%时空变化%因子分析%乌鲁木齐市
大氣降塵%來源%時空變化%因子分析%烏魯木齊市
대기강진%래원%시공변화%인자분석%오로목제시
atmospheric dust-fall%source%temporal and spatial variation%factor analysis%Urumqi
利用2000-2009乌鲁木齐市不同功能区域大气降尘通量数据，建立因子分析模型，研究了乌鲁木齐市冬季大气降尘的来源与时空变化特征。结果表明，乌鲁木齐市冬季大气降尘的主要来源为燃煤烟尘、工业粉尘、交通道路尘。工业区、交通干线和居住区为全市冬季大气降尘量较大的区域。主城区冬季大气降尘通量呈下降趋势，主要与工业排放和采暖燃煤对大气降尘的贡献减少及相关大气污染控制取得实效有关。交通道路区域的降尘通量呈波动状态，变化较小。清洁点降尘通量前5年保持稳定，而后5年受到人为活动的影响，呈显著增加趋势。
利用2000-2009烏魯木齊市不同功能區域大氣降塵通量數據，建立因子分析模型，研究瞭烏魯木齊市鼕季大氣降塵的來源與時空變化特徵。結果錶明，烏魯木齊市鼕季大氣降塵的主要來源為燃煤煙塵、工業粉塵、交通道路塵。工業區、交通榦線和居住區為全市鼕季大氣降塵量較大的區域。主城區鼕季大氣降塵通量呈下降趨勢，主要與工業排放和採暖燃煤對大氣降塵的貢獻減少及相關大氣汙染控製取得實效有關。交通道路區域的降塵通量呈波動狀態，變化較小。清潔點降塵通量前5年保持穩定，而後5年受到人為活動的影響，呈顯著增加趨勢。
이용2000-2009오로목제시불동공능구역대기강진통량수거，건립인자분석모형，연구료오로목제시동계대기강진적래원여시공변화특정。결과표명，오로목제시동계대기강진적주요래원위연매연진、공업분진、교통도로진。공업구、교통간선화거주구위전시동계대기강진량교대적구역。주성구동계대기강진통량정하강추세，주요여공업배방화채난연매대대기강진적공헌감소급상관대기오염공제취득실효유관。교통도로구역적강진통량정파동상태，변화교소。청길점강진통량전5년보지은정，이후5년수도인위활동적영향，정현저증가추세。
The spatial and temporal variations and the source of atmospheric dust-fall in winter in Urumqi were analyzed using the dust-fall data at different functional areas during 2000-2009 by factor analysis. The results showed that atmospheric dust-fall in winter in Urumqi were from coal combustion smoke, industrial dust, road dust and vehicle emissions. The zones of high atmospheric dust-fall in winter were industrial zone, the main traffic line and residential zone respectively. The dust-fall amount at main city areas in winter was on decrease, by reason of anthropogenic emission control of industrial dust and coal combustion in heating period. But the dust-fall amount at main traffic line areas changed slightly at the same period. It was also found that the dust-fall amount at a clean air site varied little during the first half of the decade but had a significant increasing trend after 2005, which was mainly affected by human activities in recent years.
